Java is a programming language originally developed by Sun Microsystems. Questions here should be about the installation, configuration and troubleshooting a JVM (Java Virtual Machine) or a JRE (Java Runtime Environment). Programming questions (unless directly related to Ubuntu) should be asked ...

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Error while installing MatlabR2011b

Error while installing MatlabR2011b in Ubuntu 12.04 64bit OS Preparing installation files ... Installing ... install: 1: eval: /tmp/mathworks_9756/sys/java/jre/glnxa64/jre/bin/java: Permission denied ...
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1answer
48 views

Java Problem in configuration

Hi friends, in this image java is installed on my computer and when i use the " java -version " shows me the message diplayed in the image . But, when I use javac -version this show me error " not ...
2
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3answers
2k views

“cannot create directory `JAVA': Permission denied ” how to solve this issue?

can anybody help me in solving this issue. I am new to Linux and here's problem: gourab@gourab-RV509:/usr/share/java$ cd / gourab@gourab-RV509:/$ cd usr gourab@gourab-RV509:/usr$ mkdir JAVA mkdir: ...
-1
votes
1answer
59 views

I'm considering dual-booting this on my desktop, but will everything work?

Ok so right now I have Windows 8 on my gaming desktop that I use constantly. The two games I run most are RuneScape and MineCraft. I am wondering one, will these work on Ubuntu? And two, will my AMD ...
3
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1answer
141 views

Java installation failed

I am using Ubuntu 11.10 on flash memory due to corrupted hard drive that could hardly keep OS. Usually when computer get down because of empty battery or other reason it is reinstalled, the Ubuntu on ...
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3answers
19k views

Installing Java on Ubuntu 64 bit

I have ubuntu 12.04 LTS version 64 bit . what is the procedure for installing and running Java for development purpose. I am new to Linux and Unix platform. Thanks in advance
2
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2answers
303 views

Where can I get Project Looking Glass source code?

I came across Project Looking Glass while searching for different desktop managers. I saw a few previews and I would like to get it on 12.04. The site from Project Looking Glass's Wikipedia page ( ...
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votes
1answer
1k views

Minecraft doesn't start on Lubuntu 12.10

I've Installed OpenJDK 6, opened the jar with java by right clicking, but it doesnt do anything What am I missing? I've also tried java -jar Minecraft.jar with sudo, didn't worked :(
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1answer
1k views

Uninstall java not working?

I am trying to uninstall java 1.7.0_10 on ubuntu 12.04 using the instructions from here-http://akbarahmed.com/2012/06/24/uninstall-java-from-ubuntu-linux/. After I complete the instructions, I check ...
1
vote
1answer
336 views

Oracle Java javac runtime error

I have been trying to install Oracle Java 7 on Ubuntu 11.04. I was following the instructions given here Once I followed all the steps ( to the letter ), I tried running java -version which gave ...
0
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1answer
120 views

Java 1.7 bugs affect ubuntu too?

I remember hearing bad things about java 1.7 on windows and OS-X, but are the same security holes present in Ubuntu?
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3answers
171 views

How do I run update_java_home.sh?

The following is an extract of an instruction manual: If Java is reconfigured after SAV for Linux has already been installed, the JAVA_HOME value in /etc/Symantec.conf must be updated. This can be ...
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2answers
1k views

Java installation (or apt-get?) problem

Two weeks ago I made several successful Java installations without any problem following link http://www.ubuntugeek.com/how-to-install-oracle-java-7-in-ubuntu-12-04.html But today I faced a ...
2
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0answers
78 views

How Can I Change Jamvm on my embedded system to Openjdk?

I have one Embedded System Currently working On jamvm. I Want to change it to openjdk. How Can I do that???
1
vote
1answer
577 views

java not allowing for the use of all 8gb of ram

I have a 32bit version of Ubuntu server with PAE active allow for the full use of the 8gb of RAM but I can't use more than 2gb of RAM in Java. I run the command java -Xms6G -Xmx7G -jar server.jar ...
2
votes
1answer
566 views

Full Screen Mode Isn't Full Screen

I am try to do 100% full screen mode, I am using Ubuntu 12.10, and on the left is the side bar and the top is the menu. When I run full screen mode it doesn't cover up those two menu bars, it sits ...
2
votes
2answers
495 views

How create a keyboard shortcout to launch an .jar file with Oracle Java 7 Runtine?

I know how to create a keyboard shortcut to launch an application. (All Settings->Keyboard->Shortcuts->Custom Shortcuts) I know how to run .jar files from Nautilius. (Right click->Open with Oracle ...
2
votes
1answer
549 views

Ubuntu 12.04 key bindings not working in IntelliJ Idea 12

I've installed the latest version of IntelliJ Idea Community Edition (12.0.1) and I have problems with key bindings there. I am using Ubuntu 12.04 LTS with Unity. None of them, where a letter is ...
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2answers
118 views

Java application appears in other unity workspace

So to clarify a few facts first: with "unity workspace" I mean the workspaces in ubuntu which I switch to using ctrl+alt+arrows. I do not mean the eclipse workspaces I use openjdk java 7 I have ...
2
votes
1answer
416 views

Ubuntu One API Java - how to use REST and AccessToken?

I am writing a java app in eclipse that backups data to several consumer-cloud-services encrypted and redundant. So far, I successfully implemented the authentication process, as it is described in ...
2
votes
1answer
654 views

How do I left-click a Java Application on a WeTab running Ubuntu 12.10? (workaround defect in Onboard)

I installed Ubuntu 12.10 on my weTab. Everything works perfectly (albeit slowly) and I can touch and use every application execpt ones written in Java. When I start any Java Application the ...
6
votes
1answer
341 views

Free Software for Billing (Colombia)

English I'm looking for a billing application (also inventories, shopping, clients, providers, accounts, etc) for small businesses. The software should adapt with Colombia's necessities. I searched ...
7
votes
1answer
4k views

No Android SDK, neither Java found

I have Java installed correctly, I did it by the manual http://www.wikihow.com/Install-Oracle-Java-on-Ubuntu-Linux I also installed Android SDK. However when I try to create a new Project IntelliJ ...
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votes
1answer
1k views

Jdk 6.0 update 6 installed sucessfully but java command not working

I switched to linux (Ubuntu 12.04) this morning and find it great but messed up while installing java. :-(. I have installed jdk6.0_6 successfully but when I run java command in terminal, I get this ...
0
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1answer
288 views

Can I install an Ubuntu app from remote laptop?

Is their a way to push/send and ubuntu-app/deb-file to be install on my Ubuntu laptop? Usecase... Laptop 1. I find an app, I need to install! But I´am not at home. I just push it to my other ...
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1answer
1k views

how to install the rpm package jdk-7u9-linux-i586.rpm?

I download the jdk-7u9-linux-i586.rpm (not the rpm.bin) I use code rpm -ivh jdk-7u9-linux-i586.rpm. But it cannot install it succesfully, why?? I use google to search the anwser, but they all about ...
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1answer
1k views

PhpStorm problem in Ubuntu 12.04

I have a problem starting PhpStorm 5 on Ubuntu 12.04, it shows the following errors stack: I installed Ubuntu just now, so its a fresh copy, changed only ubuntu 2d when logged in, installed Java from ...
1
vote
1answer
3k views

Can't use Java 7 from Eclipse?

I installed openjdk-6-jre from the package manager, then I installed Eclipse, and this was the default JRE. Now I needed to install, in addition to 6, also Java 7, so I installed openjdk-7-jre from ...
4
votes
4answers
3k views

How well does Java work on the Nexus 7?

I require Java for work purposes and standard Android would not do for me on my Nexus, hence I have decided to try to Ubuntu route. How do I successfully install Java into the Ubuntu ARM version for ...
0
votes
1answer
3k views

How do I install a Java plugin for Google Chrome?

I'm a Java developer so I have the Java 7 JDK installed on my computer from Oracle (Sun). This obviously comes with the JRE. However, Google Chrome says I need the java plugin and wants me to install ...
0
votes
1answer
2k views

Oracle Java web start silently dies (Ubuntu 12.10)

Default OpenJDK 7 installed with Ubuntu 12.10 works fine. I have a few issues with a proprietary package I'm using and I need to test against Oracle's Java to see if it's specific to OpenJDK. ...
7
votes
1answer
7k views

How do I reenable opening jar files by double clicking on them?

How can I make "double click to run" the default behaviour of a jar-file on Nautilus? There is no "Open with OpenJDK Java 7 Runtime" on the "Open with" tab under Properties.
2
votes
1answer
190 views

Why doesn't java -version return anything with Oracle's JRE 7?

I've been following these steps and got up to the check version of new JRE installation part but java -version doesn't return anything. I have run sudo update-alternatives --install /usr/bin/java ...
2
votes
4answers
7k views

How can I get sikuli-ide to work?

I installed sikuli-ide with sudo apt-get install sikuli-ide Everything was fine until I tried to start it from the terminal. I typed sikuli-ide But the only response I got was [info] locale: ...
5
votes
2answers
13k views

Cannot get Java to work in Firefox

In Firefox 17 on Ubuntu 12.04, I cannot get the Java verification applet to work (needless to say I cannot get any Java applications on the browser working). I already tried uninstalling and ...
0
votes
1answer
1k views

Minecraft not working in Ubuntu 12.04 LTS - Black screen?

This is what I've done exactly. I downloaded Minecraft for Linux from minecraft.net I tried running the file using both OpenJDK Java 7 Runtime and Oracle Java 7 Runtime The file opened fine ...
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vote
1answer
1k views

Problem installing Java using Software Center and Terminal

I am new at Ubuntu 12.04 LTS. I need to install Java 6 or 7. But, when I want to do it using the software center or by terminal it responds me "install failed" and "check your Internet connection". ...
2
votes
1answer
1k views

Killing processes from Java

I have created a Java application that can start processes and capture their PIDs so that the application can monitor the process. The user may later choose to kill the whole process tree (session). ...
1
vote
1answer
180 views

Java Problem in 12.04

My OS is 12.04 and I am running it on my laptop. Whenever I install or remove a software from the software centre I receive the error below. Can anyone show me how to fix it? Location: ...
2
votes
2answers
1k views

GWT (Google Web Toolkit) Designer not working on Ubuntu 12.10

The GWT Desinger is not working on Ubuntu 12.10. It worked on Ubuntu 12.04. I installed the Eclipse Plugin as described on the GWT Homepate If I want to open the Design-View (for an xml-GWT-File), ...
0
votes
1answer
2k views

Unable to install openjdk6 due to unmet dependencies

I tried to install openjdk6 on 12.04 LTS, with the command: sudo apt-get install openjdk-6-jre but got the following error: Reading package lists... Done Building dependency tree Reading ...
1
vote
1answer
975 views

Minecraft High CPU (125%~) using openJava 6/7

if I run Minecraft with OpenJDK 6 or 7 on my Ubuntu 12.04 machine, it eats nearly of the CPU and I have lags during minecraft gameplay. What I have tried so far: start minecraft with something like ...
0
votes
1answer
1k views

Java problems installing Glassfish 3.1.2 on Ubuntu Lucid [closed]

I'm trying to install Glassfish v3.1.2 on Ubuntu 10.04 by obtaining corresponding .sh from Oracle website and running sudo ./glassfish-installer-file.sh. However following error appears: Could not ...
0
votes
2answers
407 views

When I try to start minecraft on Ubuntu 12.04 it says It requires a Java Runtime Enviroment 1.5.0

Please help!I want to play this game, I've been looking for a way to get this to work, but nothing seems to work.
1
vote
1answer
2k views

javaws is installed and it is not installed - what is going on?

I used the Ubuntu (12.04) Software-Center to install IcedTea Web Control Panel and IcedTea Java Web Start to start a WebStart java-file with the ending jnlp. After this is done I tried to start a file ...
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2answers
100 views

Do I need any additional Java packages if I'm running the Oracle JRE?

I am running the Java 7 JRE from Oracle. I installed it through terminal and it works properly with my web browsers, and otherwise, as far as I can tell. However, I was browsing through my ...
4
votes
1answer
1k views

How can I improve Eclipse's user Interface to get rid of the excessive padding and spacing?

Eclipse Juno (historical versions too) has too much padding applied to the tabs and borders. This makes it hard to work with multiple project folders, especially ones containing multiple packages and ...
2
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0answers
298 views

Eclipse Juno won't open gui java apps when run with gksudo

I have Eclipse Juno installed on Ubuntu 12.04. When I run from the command line with sudo, everything works fine. However, when I follow the advice I see everywhere and run it with gksudo, I get the ...
0
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1answer
324 views

How to get this Java -program CPLEX working in Ubuntu 11?

I am trying to istall the IBM CPLEX here and here requiring some Java thing but getting err: /tmp/install.dir.7091/Linux/resource/jre/bin/java: 1: Syntax error: Unterminated quoted string I tested ...
0
votes
1answer
379 views

Oracle java -version doesn't work

I've installed java by following this instruction and also had installed java 7 from elsewhere but I can't seem to get it to work.. every time I type in java -version via terminal (I am ssh-ing to an ...